<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .intro {
            background: #e0ebe8;
            text-align: center;
            height: 55vh;
            /* padding会撑开盒子 vh代表的就是1%的body */
            padding-top: 45vh;   
            
        }
    </style>
</head>

<body>
    <div class="intro">
        <h1>林某人</h1>
    </div>
</body>

</html>